Rock magnetism of pelagic sediments from DSDP Leg 85 sites

A detailed rock magnetic investigation has been carried out on Deep Sea Drilling Project (DSDP) pelagic sediments from the Central Equatorial Pacific. This comprises hysteresis and thermomagnetic measurements, Lowrie-Fuller test and, for the first time, ferromagnetic resonance (FMR). Nearly stochiometric magnetite in two grain size fractions, single domain (SD) and multi domain (MD), has been deduced to be the carrier of magnetic remanence. Comparatively strong paramagnetic contributions are carried by pyrite, being identified by X-ray analysis. The statistical analysis of paleomagnetic parameters (NRM, MDF, initial susceptibility, Königsberger ratio Q) from a large number (> 1000) of samples, supported by hysteresis measurements, indicates a latitude and sedimentation rate dependent ratio of SD/MD grains. Possible sources for the magnetic constituents are discussed in terms of bacterial, volcanic, meteoritic and authigenic origin.

Sedimentology on a core from Lonar Lake in India

Concerns about the regional impact of global climate change in a warming scenario have highlighted the gaps in our understanding of the Indian Summer Monsoon (ISM, also referred to as the Indian Ocean summer monsoon) and the absence of long term palaeoclimate data from the central Indian core monsoon zone (CMZ). Here we present the first high resolution, well-dated, multiproxy reconstruction of Holocene palaeoclimate from a 10 m long sediment core raised from the Lonar Lake in central India. We show that while the early Holocene onset of intensified monsoon in the CMZ is similar to that reported from other ISM records, the Lonar data shows two prolonged droughts (PD, multidecadal to centennial periods of weaker monsoon) between 4.6-3.9 and 2-0.6 cal?ka. A comparison of our record with available data from other ISM influenced sites shows that the impact of these PD was observed in varying degrees throughout the ISM realm and coincides with intervals of higher solar irradiance. We demonstrate that (i) the regional warming in the Indo-Pacific Warm Pool (IPWP) plays an important role in causing ISM PD through changes in meridional overturning circulation and position of the anomalous Walker cell; (ii) the long term influence of conditions like El Niño-Southern Oscillation (ENSO) on the ISM began only ca. 2 cal?ka BP and is coincident with the warming of the southern IPWP; (iii) the first settlements in central India coincided with the onset of the first PD and agricultural populations flourished between the two PD, highlighting the significance of natural climate variability and PD as major environmental factors affecting human settlements.

(Table T1) Depths and ages of datum levels at ODP Leg 182 sites

The first and last appearances of Quaternary planktonic foraminifers in the Great Australian Bight were evaluated using datum levels from magnetostatigraphy, oxygen isotope stratigraphy, and calcareous nannofossil biostratigraphy to determine whether they were synchronous or diachronous with open-ocean biostratigraphic events. The first appearance of Globorotalia truncatulinoides is diachronous at 1.6-1.7 Ma at Site 1127 and 1.1-1.2 at Sites 1129 and 1132, similar to other local appearances in high latitudes. All other datum levels, however, are synchronous with open-ocean events, including the first appearance of Globorotalia hirsuta and the last appearances of Globorotalia tosaensis and pink Globigerinoides ruber in the Indo-Pacific region. A local reappearance of Gt. hirsuta at ~0.12 Ma and the disappearance of Globorotalia crassaformis at ~0.10 Ma were found to be useful for local biostratigraphy. Age control at the bottom of all of the sections is poor at this time, but results suggest that sedimentation recommenced starting at ~1.9 Ma above the regional unconformity that marks the base of seismostratigraphic Sequence 2. Sediment accumulation is distinctly reduced in the lower Pleistocene compared to the upper Pleistocene, perhaps in part because of processes associated with several omission surfaces.

X-ray fluorescence scannings, diatoms, and dinocyst of ODP Site 189-1172

Eocene sediments drilled at the East Tasman Plateau (ETP) exhibit well-defined cycles, high-resolution magnetic stratigraphy, and environmentally-controlled dinoflagellate and diatom distribution patterns. We derive a cyclostratigraphy from the spectral analysis of high-resolution elemental concentration records (Ca, Fe) for this shallow marine time series spanning the middle to early late Eocene (C16n.2n - C21). Changes in carbonate content, the ratio between Gonyaulacoid and Peridinioid dinocysts, and relative abundance of "oligotrophic" diatoms serve as proxies for a high-resolution climatic and sea-level history with high values representing high sea-level stands and decreased eutrophy of surface waters. Changing ratios between high latitude dinocysts versus cosmopolitan species provide clues on sea surface temperature trends and water mass exchange. Our results show that the relatively shallow-water middle Eocene environments of the ETP are influenced by orbitally-forced climatic cycles superimposed on third order relative sea-level changes. Changes in the dominance of Milankovitch frequency at ~38.6 Ma (late Eocene) is related to an initial deepening-step within the Tasmanian Gateway prior to the major deepening during the middle late Eocene (~35.5 Ma). Decreasing sedimentation rates at 38 Ma and 37.2 Ma reflect winnowing associated with sea-level fall. This episode is followed by renewed transgression. Dinocyst distribution patterns indicate high latitude, probably cool temperate surface water conditions throughout, with the exception of a sudden surge in cosmopolitan species near the base of subchron C18.2r, at ~41 Ma; this event is tentatively correlated to the Middle Eocene Climatic Optimum.

Saline & York Township (Mich.) residences and business, ca. 1874

Left to right: Res. of Henry A. Hammond, Sec. 26, Saline Tp. Mich.; Res. of Lewis Andrews, architect & builder, Saline, Mich.; Res. of E.C. Robinson, Saline Tp. Mich.; Res. of J.U. Fuller, Sec. 26 York Tp. Mich.; Res. of Daniel Aylsworth, Sec. 26, York Tp. Mich.; Res. of Wm. Dexter, Sec 26, York Tp. Mich.; Res. of Thos. H. Fuller, Sec. 24, York Tp. Mich. Publication information: Chicago, Ill. : Everts & Stewart, 1874.

[Map of Brown & Fullers addition to Ann Arbor, Michigan surveyed by J.F. Stratton, 1832

Oriented with north to the upper left; sheet 42 x 51 cm.

1925 UM Football Team Reunion, 1975 Indiana game

[L-R: George Babcock, Sam Babcock, Bob Brown capt., Sid Dewey, Bill Flora, Ben Friedman, Fred fuller, Charles Grube, Louie Gilbert, George Hawkins, , Ben Oosterbaan (obscured), Fred Parker; Dutch Stamman, Wally Weber]

1965 Men's Gymnastics Team,

Front Row: Cliff Chilvers, coach Newt Loken, Dr. Earl Ziegler, Gary Erwin, John Hamilton, Chip Fuller, Phil Fuller,

Back Row: Rich Blanton, Mike Henderson, Ken Williams, Dick Stone, Chris Vanden Broek, John Cashman, Gary VanderVoort, Art Bassler, Fred Sanders

Not in photo: Ned Duke

1966 Men's Gymnastics Team,

Dave Geddes, Larry Metnick, Cliff Chilvers, Wayne Miller, Rick Blanton, Scott Paris, Ken Williams, Chris Vanden Broek, Ned Duke, John Cashman, Gary VanderVoort, Phil Fuller, Art Baessler, Chip Fuller, Keith Cooley, Vic Conant, coach Newt Loken

Sand resources of southern Lake Erie, Conneaut to Toledo, Ohio : a seismic reflection and vibracore study /

"November 1980."

A lightweight pneumatic coring device : design and field test /

"September 1982."

Census of the Virgin islands of the United States, November 1, 1917. /

"The section of the report relating to population was prepared by Dr. Alba M. Edwards, expert special agent of the Division of population, and the section relating to agriculture was prepared by Mr. Arthur J. Hirsch, expert special agent of the Division of agriculture". -p. 9.

Handbook of the law of Mexican commercial corporations, including foreign corporations in Mexico (in English) containing explanations of the system of laws of the republic of Mexico and the law of the contract, management and operations of general corporations organized in Mexico; as well as of foreign corporations operating therein; together with complete forms for use by lawyers and corporate officials,

Mode of access: Internet.